I have just downloaded the facebook SDK from http://github.com/facebook/facebook-android-sdk I unpack it from git and opened Eclipse. I then created a new project using exis
I too faced the same problem. I was able to overcome this issue by placing the Facebook SDK library as well as my project(to which I want to link the Facebook SDK) within the same workspace. Now go to your project->right click->properties->android->scoll down->add->select the path to facebook SDK->press ok.
This way you can link the Facebook SDK to your project. Only adding the Facebook jar will result in an exception as this does not contain all the classes.